The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 26, 2013
Filed:
Nov. 23, 2007
Andrew E. Marble, Ottawa, CA;
Bruce J Balcom, Fredericton, CA;
Bruce Colpitts, Fredericton, CA;
Igor V Mastikhin, Fredericton, CA;
Andrew E. Marble, Ottawa, CA;
Bruce J Balcom, Fredericton, CA;
Bruce Colpitts, Fredericton, CA;
Igor V Mastikhin, Fredericton, CA;
University of New Brunswick, Fredericton, NB, CA;
Abstract
A magnet array is disclosed which is suitable for inter alia producing a remote field for use in unilateral magnetic resonance. In the 'Magnet Array', two separated magnets, which are magnetized along a substantially same collinear magnetization direction, produce a field with a local maximum centered above and between them. The field produced by the two separated magnets is substantially parallel to the collinear magnetization direction of the two separated magnets. A third magnet is centered between the two separated magnets. The third magnet has a magnetization direction which is substantially parallel to the collinear magnetization direction of the two separated magnets. The third magnet produces a field which is substantially parallel to the collinear magnetization direction of the two separated magnets, and adds to the increasing field below the local maximum point produced by the two separated magnets. The field of the third magnet, which decays with distance, adds to the increasing field below the local maximum point. The position of the third magnet is selected in order to generate a total field which has at least one of its first and second spatial derivatives with respect to the distance above the magnet array substantially equal to zero.